Large-capacity longitudinal corner tube boiler

Abstract

The invention relates to a corner tube boiler, and particularly relates to a large-capacity longitudinal corner tube boiler. The large-capacity longitudinal corner tube boiler aims to solve the problems that an existing corner tube boiler is not supported by a steel frame, a fire grate is arranged in a single structure, the expansion direction is unidirectional when the size of the boiler is too large during operation, the sealing performance between a boiler body and the fire grate is not easily guaranteed if the expansion amount is too large, and the capacity of a transverse four-corner supporting corner tube boiler can only be limited within a small range. The large-capacity longitudinal corner tube boiler comprises the boiler body, a smoke exhaust mechanism and a tail heating surface,wherein the boiler body is connected with the tail heating surface through the smoke exhaust mechanism; and the boiler body comprises a boiler barrel, a front arch water cooling wall, a rear arch water cooling wall, a side water cooling wall, a flue water cooling wall, an outlet pipe, a steam collecting pipe, a connecting pipe, a burnout chamber, a flag type convection screen, a convection flue, aleft fire grate, a right fire grate, a supporting base assembly, an upper header, a lower header, a front left descending pipe, a front middle descending pipe, a front right descending pipe, a rear left descending pipe, a rear middle descending pipe and a rear right descending pipe. The large-capacity longitudinal corner tube boiler is used for the field of corner tube boilers.

Description

technical field [0001] The invention relates to a corner tube boiler, in particular to a large-capacity vertical corner tube boiler. Background technique [0002] Traditional steel-frame boilers have complex components, heavy weight, long installation period, insufficient combustion, low actual operating efficiency, and high air pollutant emission values. The size should not be too large, the grate is arranged in a single structure, and the size should not be too wide. When the boiler is too large, the expansion direction is unidirectional during operation. If the expansion is too large, the seal between the boiler body and the grate is not easy to guarantee. These factors are As a result, the capacity of the horizontal four-corner support corner tube boiler can only be limited to a small range. Contents of the invention [0003] The present invention solves the problem that the existing angle tube boiler has no steel frame support, and the grate is arranged in a single s...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the existing corner tube boiler has no steel support, the grate is arranged in a single structure, and the expansion direction of the boiler is too large during operation. If the expansion amount is too large, the sealing between the boiler body and the grate is not easy to ensure, resulting in the problem that the capacity of the horizontal four-corner support corner tube boiler can only be limited to a small range, and then a large-capacity vertical corner tube boiler is provided.

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